Physics
Match the columns.
| Column A | Column B | ||
|---|---|---|---|
| 1. | Fixed support in a lever | (a) | Door stopper |
| 2. | Children's slide | (b) | Screw driver |
| 3. | Fixed pulley | (c) | Fulcrum |
| 4. | Wheel and axle | (d) | Well |
| 5. | Wedge | (e) | Inclined plane |
Machines
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Answer
| Column A | Column B | ||
|---|---|---|---|
| 1. | Fixed support in a lever | (c) | Fulcrum |
| 2. | Children's slide | (e) | Inclined plane |
| 3. | Fixed pulley | (d) | Well |
| 4. | Wheel and axle | (b) | Screw driver |
| 5. | Wedge | (a) | Door stopper |
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Related Questions
Which of the following is not a feature of an inclined plane?
- Length of inclined plane
- Height of inclined plane
- Threads
- Slanting surface
Which feature of the screw determines its mechanical advantage?
- Thread
- Pitch
- Lead
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Give reasons for the following statements.
(a) Work done by a standing man is zero.
(b) A simple machine neither provides energy nor does any work.
(c) Mechanical advantage of class II lever is always greater than 1.
(d) Effort depends on the steepness of inclined plane.
(e) Efficiency of a machine cannot be 100%.
Differentiate between class I, class II and class III lever. Give examples if applicable.